Plumbing in Arcadia

Hot Water & Whole-Home Water Treatment, Handled Together

At NEXGEN, we help Arcadia homeowners tackle two closely connected concerns: having enough hot water during peak demand and controlling the minerals entering their plumbing. Our hand-selected, trained technicians install, repair, and replace tank-style and tankless water heaters and handle whole-home water quality under the same roof.

We deliver end-to-end plumbing, heating, cooling, and electrical solutions backed by quality workmanship and lifetime-backed products. Because we handle multiple home systems, coordinating related work in a single visit is straightforward.

Schedule plumbing service or request a free estimate today. Call (820) 200-1614 to discuss your water heater or water treatment needs.

Sizing a Water Heater for Your Arcadia Home

The right water heater must cover the busiest hour in your household, not simply hold a certain number of gallons. For a storage tank water heater, First Hour Rating (FHR) measures how much hot water the unit can supply during its first hour of use, combining stored water and newly heated water.

Two 50-gallon tanks can carry different First Hour Ratings because burner capacity, heating elements, and recovery rate all affect output. Our licensed and insured technicians evaluate household size, bathrooms, appliances, fuel type, and simultaneous hot water demand before discussing replacement options.

General starting points for tank water heater sizing:

• Two people, one bathroom: Approximately 30 gallons as a baseline, depending on bathing habits and appliance use.
• Four people, two bathrooms: A 50-gallon gas tank is a common starting point.
• Five or more people: Homes with three or more bathrooms may need 65 to 80 gallons, two tanks, or a tankless system.
• Additional demand: Rough estimates may add about 3.5 gallons per extra bathroom and 5 gallons for a dishwasher.

These figures aren’t substitutes for an on-site calculation. The goal is enough first-hour capacity to cover peak demand with roughly 10% to 15% in reserve. Undersizing leaves a unit running hard and wearing out faster. Oversizing wastes energy through standby heat loss.

Sizing a Tankless Water Heater by Flow Rate

A tankless water heater is sized by gallons per minute (GPM), the volume of hot water it can produce continuously. One user may need about 3.5 GPM, while a larger household running showers, faucets, and appliances at the same time may need 8 to 11 GPM or more.

Incoming water temperature matters too. Cooler groundwater requires a greater temperature rise, which can reduce effective flow below the unit’s maximum rating. We account for fixture demand and temperature rise rather than selecting a unit by its advertised GPM alone. Emergency water heater service is also available when a system stops producing hot water or develops a leak.

Whole-Home Water Treatment for Hard Water

Whole-home water treatment, also called point-of-entry treatment, conditions or filters water where the main supply enters the house. Unlike a single-tap filter, it reaches every fixture, appliance, and the water heater itself.

Some Arcadia homes receive water through Golden State Water Company’s South Arcadia system, which draws groundwater from the Main San Gabriel Basin. Testing for that system reported an average hardness of 9.4 grains per gallon in 2025, with results ranging from 6.4 to 12 grains per gallon. Those levels are generally classified as hard water, driven by dissolved calcium and magnesium.

A water softener addresses calcium and magnesium directly, while whole-home water filtration targets other quality concerns depending on the equipment selected. We can assess your supply, discuss the conditions you want to address, and explain available product protections before any work begins.

Trained Technicians & Lifetime-Backed Products

Our technicians are hand-selected, background-checked, and receive ongoing training. We focus on clear communication and completing work correctly the first time, with competitive pricing, price-match guarantees, and lifetime warranties available for qualifying products and services.

Additional service benefits include:

• X Protection Plan: Members get a dedicated phone line, priority service and installation, a guaranteed service window, repair discounts, annual water heater flushes, and plumbing inspections.
• Connected home services: We handle plumbing, heating, cooling, and electrical work through one company.
• Community commitment: Through Project X, we support community initiatives beyond individual service calls.

Get a Free Water Heater or Water Treatment Estimate

Request a free estimate for a sizing evaluation or whole-home water treatment consultation. We’ll review your current equipment, household demand, and water quality concerns so you can compare the right options for your home.

Appointments are available through our online booking system, and we offer emergency plumbing availability when urgent service is needed.

See what our customers have to say!

“You are always quick to respond, and your team is professional and courteous. Ben had to do some exploring to find the leak and he made minimum holes and fixed the leak.” - Colleen D.

“I researched to find a reliable plumber that would be interested to solve my problem rather than try to upsell me to something more. He did it without rushing through or trying to make it look like  a bigger job to upsell me.” - Jim E.

Call (820) 200-1614 to schedule service with NEXGEN.